GPIO: parallella_gpio: Fix pin direction
GPIO: parallella_gpio: Fix pin direction

Connect gpio directly to pgpio.
The oh_tristate block was never needed.

Signed-off-by: Ola Jeppsson <793f970c52ded1276b9264c742f19d1888cbaf73@adapteva.com>

olajep/oh,peteasa/oh,parallella/oh,parallella/oh,parallella/oh,peteasa/oh,olajep/oh,olajep/oh,peteasa/oh,olajep/oh,parallella/oh,peteasa/oh